20040087243156 has 24 divisors (see below), whose sum is σ = 46760446434240. Its totient is φ = 6679994385792.

The previous prime is 20040087243061. The next prime is 20040087243179. The reversal of 20040087243156 is 65134278004002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1874296 + ... + 6602511.

It is an arithmetic number, because the mean of its divisors is an integer number (1948351934760).

Almost surely, 2^{20040087243156} is an apocalyptic number.

It is an amenable number.

20040087243156 is an abundant number, since it is smaller than the sum of its proper divisors (26720359191084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20040087243156 is a wasteful number, since it uses less digits than its factorization.

20040087243156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8673823 (or 8673821 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 42.

The spelling of 20040087243156 in words is "twenty trillion, forty billion, eighty-seven million, two hundred forty-three thousand, one hundred fifty-six".